| San Pietro in Casale to Red Bank (New Jersey) | 4,153.78 mi (6,684.86 km) |
| San Pietro in Casale to Red Bank (Tennessee) | 4,858.62 mi (7,819.19 km) |
| San Pietro in Casale to Red Bluff (California) | 5,905.59 mi (9,504.13 km) |
| San Pietro in Casale to Red Hill (South Carolina) | 4,646.02 mi (7,477.05 km) |
| San Pietro in Casale to Red Oak (Texas) | 5,457.23 mi (8,782.57 km) |
| San Pietro in Casale to Red Wing (Minnesota) | 4,712.78 mi (7,584.49 km) |
| San Pietro in Casale to Redan (Georgia) | 4,872.94 mi (7,842.24 km) |
| San Pietro in Casale to Redding (California) | 5,885.48 mi (9,471.77 km) |
| San Pietro in Casale to Redland (Maryland) | 4,335.39 mi (6,977.13 km) |
| San Pietro in Casale to Redlands (California) | 6,112.81 mi (9,837.62 km) |
| San Pietro in Casale to Redmond (Oregon) | 5,636.42 mi (9,070.94 km) |
| San Pietro in Casale to Redmond (Washington) | 5,459.57 mi (8,786.33 km) |
| San Pietro in Casale to Redondo Beach (California) | 6,162.04 mi (9,916.85 km) |
| San Pietro in Casale to Redwood City (California) | 6,063.29 mi (9,757.93 km) |
| San Pietro in Casale to Reedley (California) | 6,035.68 mi (9,713.48 km) |
